There are
1,927 mi
from Arlington Heights, IL to Walla Walla, WA
That's the driving distance. It would take 1 day 9 hours to go from Arlington Heights, Illinois to Walla Walla, Washington.
The flight distance (direct flight from Arlington Heights, IL to Walla Walla, WA) is 1,522.31 mi.
1,927 mi = 3,101.31 kms